The Star Trek television series and films use the term "warp drive" to describe their method of faster-than-light travel. Neither the Alcubierre theory, nor anything similar, existed when the series was conceived—the term "warp drive" and general concept originated with John W. Campbell's 1931 science fiction novel Islands of Space. Alcubierre stated in an email to William Shatner that his theory was directly inspired by the term used in the show and cites the "'warp drive' of science fiction" in his 1994 article. A USS Alcubierre appears in the Star Trek tabletop RPG Star Trek Adventures. Since the release of Star Trek: The Original Series, more recent Star Trek spin-off series have made closer use of the theory behind the Alcubierre Drive incorporating warp bubbles/fields into the in-universe science.
Well, the universe is expanding, and we don't know why. Dark energy has come to dominate the energy balance of universe, and we don't know what that is. We've a theory that's great for describing small things, and a different theory that's great for describing large or fast things, but they don't line up, so we can't have them quite right.
If the universe did have a period of greatly increased expansion shortly after the big bang, it doesn't seem too crazy to suggest that you could do it again, at least in theory. Might require some absurd energy density. That much energy in one place is likely to collapse into a black hole, which would sort out contacting the universe again.
https://en.wikipedia.org/wiki/Expansion_of_the_universe